Davinci: Configurable NAND chip selects

Davinci: Configurable NAND chip selects

Add a CONFIG_SYS_NAND_CS setting to all davinci configs and
use it to setup the NAND controller in the davinci_nand
mtd driver.

Signed-off-by: Nick Thompson <nick.thompson@gefanuc.com>

9 files changed, 18 insertions, 4 deletions

diff --git a/include/asm-arm/arch-davinci/emif_defs.h b/include/asm-arm/arch-davinci/emif_defs.h
index c91e30c8f..d67292f4b 100644
--- a/include/asm-arm/arch-davinci/emif_defs.h
+++ b/include/asm-arm/arch-davinci/emif_defs.h
@@ -51,10 +51,7 @@ typedef struct {
 	dv_reg		NANDFCR;
 	dv_reg		NANDFSR;
 	u_int8_t	RSVD1[8];
-	dv_reg		NANDF1ECC;
-	dv_reg		NANDF2ECC;
-	dv_reg		NANDF3ECC;
-	dv_reg		NANDF4ECC;
+	dv_reg		NANDFECC[4];
 	u_int8_t	RSVD2[60];
 	dv_reg		NAND4BITECCLOAD;
 	dv_reg		NAND4BITECC1;
@@ -68,4 +65,13 @@ typedef struct {
 } emif_registers;
 
 typedef emif_registers	*emifregs;
+
+#define DAVINCI_NANDFCR_4BIT_ECC_SEL_MASK		(3 << 4)
+#define DAVINCI_NANDFCR_4BIT_ECC_SEL(n)			((n-2) << 4)
+
+#define DAVINCI_NANDFCR_1BIT_ECC_START(n)		(1 << (8 + (n-2)))
+
+#define DAVINCI_NANDFCR_4BIT_ECC_START			(1 << 12)
+#define DAVINCI_NANDFCR_4BIT_CALC_START			(1 << 13)
+
 #endif
diff --git a/include/configs/davinci_dm355evm.h b/include/configs/davinci_dm355evm.h
index d092fb832..37011c093 100644
--- a/include/configs/davinci_dm355evm.h
+++ b/include/configs/davinci_dm355evm.h
@@ -66,6 +66,7 @@
 
 /* NAND: socketed, two chipselects, normally 2 GBytes */
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #define CONFIG_SYS_NAND_USE_FLASH_BBT
 #define CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST
 #define CONFIG_SYS_NAND_PAGE_2K
diff --git a/include/configs/davinci_dm355leopard.h b/include/configs/davinci_dm355leopard.h
index ca3dea48f..e09fb7518 100644
--- a/include/configs/davinci_dm355leopard.h
+++ b/include/configs/davinci_dm355leopard.h
@@ -65,6 +65,7 @@
 
 /* NAND */
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #define CONFIG_SYS_NAND_USE_FLASH_BBT
 #define CONFIG_SYS_NAND_HW_ECC
 
diff --git a/include/configs/davinci_dm365evm.h b/include/configs/davinci_dm365evm.h
index 491607766..c6e1d107f 100644
--- a/include/configs/davinci_dm365evm.h
+++ b/include/configs/davinci_dm365evm.h
@@ -74,6 +74,7 @@
 
 /* NAND: socketed, two chipselects, normally 2 GBytes */
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #define CONFIG_SYS_NAND_USE_FLASH_BBT
 #define CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST
 #define CONFIG_SYS_NAND_PAGE_2K
diff --git a/include/configs/davinci_dm6467evm.h b/include/configs/davinci_dm6467evm.h
index ce2d7c4dd..ddc5990ce 100644
--- a/include/configs/davinci_dm6467evm.h
+++ b/include/configs/davinci_dm6467evm.h
@@ -75,6 +75,7 @@
 #define CONFIG_SYS_NO_FLASH
 #ifdef CONFIG_SYS_USE_NAND
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #undef CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_ENV_IS_IN_NAND
 #define CONFIG_ENV_SIZE			(16 << 10)	/* 16 KiB */
diff --git a/include/configs/davinci_dvevm.h b/include/configs/davinci_dvevm.h
index f7d23990c..5774df5cf 100644
--- a/include/configs/davinci_dvevm.h
+++ b/include/configs/davinci_dvevm.h
@@ -114,6 +114,7 @@
 /*=====================*/
 #ifdef CONFIG_SYS_USE_NAND
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #undef CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_SYS_NO_FLASH
 #define CONFIG_ENV_IS_IN_NAND		/* U-Boot env in NAND Flash  */
diff --git a/include/configs/davinci_schmoogie.h b/include/configs/davinci_schmoogie.h
index 47db2aa9c..3972ebce6 100644
--- a/include/configs/davinci_schmoogie.h
+++ b/include/configs/davinci_schmoogie.h
@@ -83,6 +83,7 @@
 #undef CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_SYS_NO_FLASH
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #define CONFIG_ENV_IS_IN_NAND		/* U-Boot env in NAND Flash  */
 #define CONFIG_ENV_SECT_SIZE	2048	/* Env sector Size */
 #define CONFIG_ENV_SIZE		(128 << 10)	/* 128 KiB */
diff --git a/include/configs/davinci_sffsdr.h b/include/configs/davinci_sffsdr.h
index f24eb7a8b..94be9dcf4 100644
--- a/include/configs/davinci_sffsdr.h
+++ b/include/configs/davinci_sffsdr.h
@@ -78,6 +78,7 @@
 #undef CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_SYS_NO_FLASH
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #define CONFIG_ENV_IS_IN_NAND		/* U-Boot env in NAND Flash  */
 #define CONFIG_ENV_SECT_SIZE	2048	/* Env sector Size */
 #define CONFIG_ENV_SIZE		(128 << 10)	/* 128 KiB */
diff --git a/include/configs/davinci_sonata.h b/include/configs/davinci_sonata.h
index 5a55c569d..490821a0e 100644
--- a/include/configs/davinci_sonata.h
+++ b/include/configs/davinci_sonata.h
@@ -114,6 +114,7 @@
 /*=====================*/
 #ifdef CONFIG_SYS_USE_NAND
 #define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_CS		2
 #undef CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_SYS_NO_FLASH
 #define CONFIG_ENV_IS_IN_NAND		/* U-Boot env in NAND Flash  */